EP0693341A1 - Self-locking blade holder - Google Patents
Self-locking blade holder Download PDFInfo
- Publication number
- EP0693341A1 EP0693341A1 EP95202024A EP95202024A EP0693341A1 EP 0693341 A1 EP0693341 A1 EP 0693341A1 EP 95202024 A EP95202024 A EP 95202024A EP 95202024 A EP95202024 A EP 95202024A EP 0693341 A1 EP0693341 A1 EP 0693341A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- cam
- contact
- cam block
- mounting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
- B23D51/10—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for hand-held or hand-operated devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17761—Side detent
- Y10T279/17769—Pivoted or rotary
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9457—Joint or connection
- Y10T83/9473—For rectilinearly reciprocating tool
- Y10T83/9481—Tool is single element reciprocable along elongate cutting edge [e.g., saw blade, etc.]
Definitions
- the present invention relates to a mechanism for holding a saw blade to the reciprocating plunger of a tool, such as a power tool. More particularly, the present invention relates to a self-locking, quick-release blade holder which will accommodate blades of varying thicknesses.
- Saw blades of the type under consideration have a planar cutting portion with teeth extending along one edge of the blade from the outer end thereof. These blades also have an integral co-planar mounting portion with an aperture adjacent the inner end of the blade.
- the reciprocating plunger of a power tool which will utilize blades of this type includes an opening or cavity to receive the mounting portion of a selected blade. Normally the plunger includes a short cylindrical projection which extends into the cavity for interengagement with the aforementioned blade aperture.
- Conventional blade holders of the type under consideration use a set screw for tightly clamping the blade to the tool plunger. Of course, tightening of the set screw requires use of a separate tool, such as a screwdriver or Allen wrench.
- the present invention relates to a self-locking blade holder which permits a blade to be quickly mounted to and disengaged from the tool plunger without the aid of a separate tool.
- the invention provides a self-locking feature in that the blade may be mounted in place simply by inserting the mounting portion of the blade in a cavity for engagement with a cam block. The blade may be quickly released by manual operation of an actuator forming part of the blade holder assembly.
- the blade holder assembly of the present invention accommodates blades of varying thicknesses. Still further, the blade holder assembly of the present invention is not of complicated construction and thus lends itself to inexpensive manufacture.
- the blade holder assembly of the present invention is adapted to mount a blade, generally designated 12, to the reciprocating plunger 14.
- the plunger 14 forms part of a power operated, reciprocating saw, often referred to as a Recipro saw or Saber saw.
- the plunger 14 is of cylindrical construction throughout substantially all of its length terminating at an outer end having a planar mounting surface 16 (FIGURE 6). It will also be noted that this planar face includes a short cylindrical projection 18.
- the blade 12 is of conventional construction and includes a planar cutting portion 20.
- the blade includes a series of cutting teeth (not shown) extending along the edge 20a of the blade and terminating at the outer end of the blade.
- the blade 12 also includes a co-planar mounting portion 22 which includes an aperture 24 for receiving the projection 18 formed on the plunger.
- the inner end of the blade is defined by an extension 26 having a height less than the height of the mounting portion 22 of the blade.
- the blade holder assembly includes a housing 28 adapted to be secured to the plunger 14.
- the housing 28 includes a bore 30 in coaxial alignment with a threaded bore 32 formed in the plunger 14.
- a fastener 34 threadingly engages the bore 32 for securing the housing 28 to the plunger with a wall 36 of the housing in engagement with a wall 36 formed on the plunger.
- the housing generally designated 28, includes upper and lower oppositely disposed walls 40 and 42, respectively. These two walls cooperate with an inner wall 44 of the housing and the planar surface 16 to define a cavity 46.
- the walls 40, 42 have aligned openings 48 and 50, respectively, for receiving an actuator pin 54, the latter being attached at its upper end to an actuator knob or lever 56.
- the pin 54 has a flattened elongated surface 54a for receipt in a complimentary shaped bore formed in a cam block 60.
- the pin 54 includes a recess (not shown) at its lower end for receipt of a E-Ring 55 to secure the pin to the housing 28.
- the cam block 60 includes an axially extending recess 62 for receiving one end 64a of a torsion spring 64.
- the other end 64b of the spring is received within a recess 66 (FIGURE 2) formed in the cam block.
- a projection 68 (FIGURE 6) on the cam block is arranged to abut a projection on the housing to limit clockwise rotation of the cam block when a blade is not in place.
- the cam block 60 includes an arcuate cam face 70.
- This cam face is defined by a segment of an imaginary cylinder having its central axis parallel and offset with respect to the axis of rotation of the cam block.
- 72 indicates the longitudinal central axis of the pin 54 which is the axis about which the cam block 60 rotates.
- the longitudinal central axis of the imaginary cylinder containing the cam face 70 is indicated at 74 in FIGURE 7.
- the axis 74 is parallel and offset with respect to the axis 72.
- the cam face has a leading portion 70a and a trailing portion 70b. It will be appreciated that the leading portion of the cam surface is spaced from the axis 72 to an extent greater than the trailing portion of the cam surface.
- the blade 12 is quickly mounted in place by inserting the mounting portion 22 within the cavity 46.
- the blade will tend to rotate the cam block 60 in a counterclockwise direction by reason of frictional engagement between the blade and the cam block.
- the actuator 56 is rotated in a counterclockwise direction to facilitate inserting the blade fully in place with the blade aperture 24 receiving the projection 18 on the plunger 14.
- the torsion spring 64 will act to urge the cam block 60 in a clockwise direction for holding the blade in place.
- the cam face 70 establishes an axial line of contact 80 with the planar surface of the mounting portion 22 of the blade 12.
- This axial line of contact extends for substantially the height of the blade mounting portion 22 as the cam block 60 has a height substantially the same as the height of the blade mounting portion.
- This line of contact is of course parallel with the axis 72, i.e., the axis of rotation of the cam block.
- the line of contact 80 is adjacent the leading portion of the cam face 70.
- the line of contact 80 occupies an over-center relationship with respect to a plane 82 which is perpendicular to the blade and which contains the axis 72.
- this line of contact is spaced from the piano 82 in a direction toward the inner and of the blade.
- the cam face 10 will tend to increase the holding affect on the blade in response to a force tending to pull the blade out of the cavity 46, i.e., to the left as seen in FIGURE 7.
- the cam face 70 establishes an axial line of contact 84 with the planar face of the mounting portion 22' of a blade 12' which is thicker than the blade 12. Again, it is seen that the line of contact 84 occupies an over-center relationship with respect to the plane 82.
- the line off contact 84 is intermediate the leading and trailing portions off the cam face 70.
- the cam face 70 establishes an axial line of contact 86 with the planar surface of the mounting portion 22'' of a blade 12'' which has a thickness greater than the thickness of the blade 12'. It is noted that the line of contact 86 also occupies an over-center relationship with respect to the plane 82. It is also noted that the line of contact 86 is adjacent the trailing portion of the cam face 70. Thus, irrespective of the thickness of the blades, the over-center relationship is maintained thereby securely holding each blade in place notwithstanding forces tending to pull the blade away from the cavity 46.
- one modification would include forming the planar mounting surface 16 and projection 18 as part of a wall which in turn would be port of the housing 28.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
Description
- The present invention relates to a mechanism for holding a saw blade to the reciprocating plunger of a tool, such as a power tool. More particularly, the present invention relates to a self-locking, quick-release blade holder which will accommodate blades of varying thicknesses.
- Saw blades of the type under consideration have a planar cutting portion with teeth extending along one edge of the blade from the outer end thereof. These blades also have an integral co-planar mounting portion with an aperture adjacent the inner end of the blade. Typically, the reciprocating plunger of a power tool which will utilize blades of this type includes an opening or cavity to receive the mounting portion of a selected blade. Normally the plunger includes a short cylindrical projection which extends into the cavity for interengagement with the aforementioned blade aperture. Conventional blade holders of the type under consideration use a set screw for tightly clamping the blade to the tool plunger. Of course, tightening of the set screw requires use of a separate tool, such as a screwdriver or Allen wrench.
- Other forms of blade holders are shown in United States patents 4,106,181, 4,601,477, 5,103,565 and Serial No. 098,710, filed July 20, 1993, now United States patent No. 5,322,302. The devices shown in these patents are either overly complicated or are not adapted to handle blades of varying thicknesses.
- The present invention relates to a self-locking blade holder which permits a blade to be quickly mounted to and disengaged from the tool plunger without the aid of a separate tool. The invention provides a self-locking feature in that the blade may be mounted in place simply by inserting the mounting portion of the blade in a cavity for engagement with a cam block. The blade may be quickly released by manual operation of an actuator forming part of the blade holder assembly. Further, the blade holder assembly of the present invention accommodates blades of varying thicknesses. Still further, the blade holder assembly of the present invention is not of complicated construction and thus lends itself to inexpensive manufacture. These and other objects and advantages of the invention will become apparent from the following specification.
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- FIGURE 1 is an exploded isometric view of the blade holder assembly of the present invention;
- FIGURE 2 is an enlarged side view of a housing forming part of the blade holder assembly;
- FIGURE 3 is a section taken along the line 3-3 of FIGURE 2;
- FIGURE 4 is an end view as seen along the line 4-4 of FIGURE 2;
- FIGURE 5 is an end view as seen taken along the line 5-5 of FIGURE 2;
- FIGURE 6 is an enlarged partial section and partial top view showing the principal parts of the blade holder assembly; and
- FIGURE 7 is a somewhat diagramatic view showing various positions of the cam block when engaging blades of varying thicknesses.
- Referring first to FIGURE 1, the blade holder assembly of the present invention, generally designated 10, is adapted to mount a blade, generally designated 12, to the
reciprocating plunger 14. It will be understood that theplunger 14 forms part of a power operated, reciprocating saw, often referred to as a Recipro saw or Saber saw. Theplunger 14 is of cylindrical construction throughout substantially all of its length terminating at an outer end having a planar mounting surface 16 (FIGURE 6). It will also be noted that this planar face includes a shortcylindrical projection 18. - The
blade 12 is of conventional construction and includes aplanar cutting portion 20. The blade includes a series of cutting teeth (not shown) extending along the edge 20a of the blade and terminating at the outer end of the blade. Theblade 12 also includes aco-planar mounting portion 22 which includes anaperture 24 for receiving theprojection 18 formed on the plunger. The inner end of the blade is defined by anextension 26 having a height less than the height of themounting portion 22 of the blade. - The blade holder assembly includes a
housing 28 adapted to be secured to theplunger 14. In this respect, thehousing 28 includes abore 30 in coaxial alignment with a threadedbore 32 formed in theplunger 14. Afastener 34 threadingly engages thebore 32 for securing thehousing 28 to the plunger with awall 36 of the housing in engagement with awall 36 formed on the plunger. - The housing, generally designated 28, includes upper and lower oppositely disposed
walls inner wall 44 of the housing and theplanar surface 16 to define acavity 46. - The
walls openings actuator pin 54, the latter being attached at its upper end to an actuator knob orlever 56. Thepin 54 has a flattenedelongated surface 54a for receipt in a complimentary shaped bore formed in acam block 60. Thus, it will be apparent that manual rotation of theknob 56 will impart rotation to the cam block which is mounted by thepin 54 in thecavity 46. Thepin 54 includes a recess (not shown) at its lower end for receipt of aE-Ring 55 to secure the pin to thehousing 28. - The
cam block 60 includes an axially extendingrecess 62 for receiving oneend 64a of atorsion spring 64. Theother end 64b of the spring is received within a recess 66 (FIGURE 2) formed in the cam block. It will be understood that thespring 64 tends to rotate thecam block 60 in a clockwise direction as seen in FIGURE 6. A projection 68 (FIGURE 6) on the cam block is arranged to abut a projection on the housing to limit clockwise rotation of the cam block when a blade is not in place. - The
cam block 60 includes anarcuate cam face 70. This cam face is defined by a segment of an imaginary cylinder having its central axis parallel and offset with respect to the axis of rotation of the cam block. This can be understood by reference to FIGURE 7 where 72 indicates the longitudinal central axis of thepin 54 which is the axis about which thecam block 60 rotates. (This axis is parallel with the plane of the blade and perpendicular to the longitudinal axis of the blade.) The longitudinal central axis of the imaginary cylinder containing thecam face 70 is indicated at 74 in FIGURE 7. Thus, it is seen that theaxis 74 is parallel and offset with respect to theaxis 72. The cam face has a leading portion 70a and a trailingportion 70b. It will be appreciated that the leading portion of the cam surface is spaced from theaxis 72 to an extent greater than the trailing portion of the cam surface. - Referring to FIGURE 6, it will be understood that the
blade 12 is quickly mounted in place by inserting themounting portion 22 within thecavity 46. As the blade is pushed inwardly, the blade will tend to rotate thecam block 60 in a counterclockwise direction by reason of frictional engagement between the blade and the cam block. Preferably, theactuator 56 is rotated in a counterclockwise direction to facilitate inserting the blade fully in place with theblade aperture 24 receiving theprojection 18 on theplunger 14. Thetorsion spring 64 will act to urge thecam block 60 in a clockwise direction for holding the blade in place. - Referring to FIGURE 7, it is seen that the
cam face 70 establishes an axial line ofcontact 80 with the planar surface of themounting portion 22 of theblade 12. This axial line of contact extends for substantially the height of theblade mounting portion 22 as thecam block 60 has a height substantially the same as the height of the blade mounting portion. This line of contact is of course parallel with theaxis 72, i.e., the axis of rotation of the cam block. It is noted that the line ofcontact 80 is adjacent the leading portion of thecam face 70. It is also noted that the line ofcontact 80 occupies an over-center relationship with respect to aplane 82 which is perpendicular to the blade and which contains theaxis 72. That is to say, this line of contact is spaced from thepiano 82 in a direction toward the inner and of the blade. Thus, the cam face 10 will tend to increase the holding affect on the blade in response to a force tending to pull the blade out of thecavity 46, i.e., to the left as seen in FIGURE 7. - The
cam face 70 establishes an axial line of contact 84 with the planar face of the mounting portion 22' of a blade 12' which is thicker than theblade 12. Again, it is seen that the line of contact 84 occupies an over-center relationship with respect to theplane 82. The line off contact 84 is intermediate the leading and trailing portions off thecam face 70. Thecam face 70 establishes an axial line ofcontact 86 with the planar surface of the mounting portion 22'' of a blade 12'' which has a thickness greater than the thickness of the blade 12'. It is noted that the line ofcontact 86 also occupies an over-center relationship with respect to theplane 82. It is also noted that the line ofcontact 86 is adjacent the trailing portion of thecam face 70. Thus, irrespective of the thickness of the blades, the over-center relationship is maintained thereby securely holding each blade in place notwithstanding forces tending to pull the blade away from thecavity 46. - While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular embodiment set forth, but on the contrary, it is intended to cover such alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. For example, one modification would include forming the planar mounting
surface 16 andprojection 18 as part of a wall which in turn would be port of thehousing 28.
Claims (3)
- A blade holder assembly for a blade having a planar cutting portion terminating at an outer end of the blade and a co-planar mounting portion terminating at an inner end of the blade, said assembly comprising:(a) first means on a plunger defining a planar surface for substantial co-extensive engagement with one side of the mounting portion of plural ones of said blades of varying thicknesses;(b) second means attached to the plunger and cooperating with said first means to define a cavity for receiving the mounting portion of the blade;(c) a cam block mounted in the cavity for rotation about an axis parallel with the plane of the blade and perpendicular to the longitudinal axis of the blade;(d) said cam block having an arcuate cam face defined by a segment of an imaginary cylinder having its central axis parallel and offset with respect to the axis of rotation of the cam block such that a leading portion of the cam surface is spaced from the axis of rotation of the cam block to an extent greater than a trailing portion of the cam surface;(e) the axial extent of said arcuate cam face being substantially the same as the height of the mounting portion of the blade;(f) wherein the cam face establishes respective plural axial lines of contact with the other side of the mounting portion of ones of said blades of varying thicknesses with (i) the line of contact for the thinnest blade being adjacent the leading portion of the cam face, (ii) the line of contact for the thickest blade being adjacent the trailing portion of the cam face, and (iii) the line of contact for a blade of intermediate thickness being intermediate said other lines of contact; and(g) each of said lines of contact occupying an over-center relationship with respect to a plane perpendicular to the blade and containing said axis of rotation of the cam block, each of the lines of contact being spaced from said last-mentioned plane in a direction toward the inner end of the blade thereby to increase the holding effect of the cam block when the blade is subjected to a force tending to pull the blade out of the cavity.
- The blade holder assembly according to claim 1 wherein said second means is in the form of a housing.
- The blade holder assembly according to claim 2 further defined by:(a) spring means mounted by said housing and engaged with said cam block for biasing the latter to rotate about its axis of rotation in a direction urging said arcuate cam face into engagement with the blade; and(b) manual actuating means attached to the cam block for rotating the same to disengage the cam face from the blade.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US279052 | 1994-07-22 | ||
US08/279,052 US5443276A (en) | 1994-07-22 | 1994-07-22 | Self-locking blade holder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0693341A1 true EP0693341A1 (en) | 1996-01-24 |
EP0693341B1 EP0693341B1 (en) | 1999-12-08 |
Family
ID=23067457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95202024A Expired - Lifetime EP0693341B1 (en) | 1994-07-22 | 1995-07-21 | Self-locking blade holder |
Country Status (3)
Country | Link |
---|---|
US (1) | US5443276A (en) |
EP (1) | EP0693341B1 (en) |
DE (1) | DE69513741T2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19737240A1 (en) * | 1997-08-27 | 1999-03-11 | Scintilla Ag | Tensioning device for saw blades, especially powered keyhole saws |
EP0976485A1 (en) | 1998-07-02 | 2000-02-02 | Black & Decker Inc. | Saw blade clamp with cam for a compass saw |
US6662698B2 (en) | 2002-01-02 | 2003-12-16 | Black & Decker Inc. | Saw blade clamp system |
DE19737237B4 (en) * | 1997-08-27 | 2005-09-08 | Scintilla Ag | Clamping device for saw blades |
EP3984676A1 (en) * | 2020-10-16 | 2022-04-20 | Globe (Jiangsu) Co., Ltd. | Reciprocating saw |
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US6237231B1 (en) * | 1994-11-29 | 2001-05-29 | Milwaukee Electric Tool Corporation | Keyless clamp assembly for reciprocating tool |
DE19501635A1 (en) * | 1995-01-20 | 1996-08-01 | Metabowerke Kg | Device for receiving a saw blade that can be clamped at one end |
US5573255A (en) * | 1995-05-05 | 1996-11-12 | Power Tool Holders, Inc. | Quick release chuck device for saw blades |
US7325315B2 (en) * | 1995-06-09 | 2008-02-05 | Black & Decker Inc. | Clamping arrangement for receiving a saw blade in multiple orientations |
US6295736B1 (en) | 1995-06-09 | 2001-10-02 | Black & Decker Inc. | Blade ejection mechanism for a saw blade clamping arrangement of a power tool |
US5647133A (en) * | 1995-06-09 | 1997-07-15 | Black & Decker Inc. | Saw blade clamping arrangement for a power tool |
US6009627A (en) * | 1995-06-09 | 2000-01-04 | Black & Decker Inc. | Saw blade clamping arrangement for a power tool |
US6023848A (en) * | 1995-06-09 | 2000-02-15 | Black & Decker Inc. | Saw blade clamping arrangement for a power tool |
US6944959B2 (en) | 1995-06-09 | 2005-09-20 | Black & Decker Inc. | Clamping arrangement for receiving a saw blade in multiple orientations |
DE69724935T2 (en) * | 1996-03-01 | 2004-07-22 | Milwaukee Electric Tool Corp., Brookfield | KEYLESS SAW BLADE CLAMPING DEVICE |
US6725548B1 (en) | 1996-03-01 | 2004-04-27 | Milwaukee Electric Tool Corporation | Keyless blade clamp mechanism |
EP0810050B1 (en) * | 1996-05-23 | 2002-08-14 | Black & Decker Inc. | Saw blade clamping arrangement for a power tool |
US5810367A (en) * | 1996-08-09 | 1998-09-22 | S-B Power Tool Company | Wrenchless holder for working tools |
US5987758A (en) * | 1997-10-28 | 1999-11-23 | Ryobi North America, Inc. | Quick-change blade clamp |
US6105482A (en) * | 1998-02-20 | 2000-08-22 | Delta International Machinery Corp. | Self-adjusting clamping device |
US6467177B2 (en) | 1998-07-02 | 2002-10-22 | Black & Decker Inc. | Reciprocating saw blade clamp |
US6209208B1 (en) | 1998-10-09 | 2001-04-03 | Milwaukee Electric Tool Corporarion | Keyless blade clamp mechanism |
JP3858529B2 (en) * | 1998-10-23 | 2006-12-13 | 日立工機株式会社 | Saver saw blade attachment / detachment mechanism |
JP3542511B2 (en) | 1998-12-24 | 2004-07-14 | 株式会社マキタ | Cutting equipment for reciprocating cutting tools |
US6112420A (en) * | 1999-08-10 | 2000-09-05 | S-B Power Tool Company | Blade clamp for reciprocating saw |
US6530579B1 (en) | 2000-07-11 | 2003-03-11 | Jan P. Houben | Wedging blade clamp for scroll saw |
US7257900B2 (en) | 2002-01-02 | 2007-08-21 | Black & Decker Inc. | Canted saw blade |
JP4166982B2 (en) | 2002-01-15 | 2008-10-15 | 日立工機株式会社 | Saver saw |
US20040158994A1 (en) * | 2002-03-08 | 2004-08-19 | Cheng I Teng | Blade clamping device for jig saws |
US20040163264A1 (en) * | 2003-02-21 | 2004-08-26 | Simonz John C. | Hand saw |
US6848186B1 (en) * | 2003-08-18 | 2005-02-01 | Rexon Industrial Corp., Ltd. | Saw blade clamping device |
GB2407532A (en) * | 2003-10-28 | 2005-05-04 | Black & Decker Inc | Clamp assembly for removably mounting a working member |
US7871080B2 (en) * | 2004-01-16 | 2011-01-18 | Robert Bosch Gmbh | Tool-less blade clamping apparatus for a reciprocating tool |
GB0423498D0 (en) * | 2004-10-22 | 2004-11-24 | Gmca Pty Ltd | Blade clamping apparatus |
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US20070101590A1 (en) * | 2005-11-08 | 2007-05-10 | Great Neck Saw Manufacturers, Inc. | Hack saw |
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US8813372B2 (en) | 2007-09-14 | 2014-08-26 | Milwaukee Electric Tool Corporation | Blade clamp mechanism |
US8230607B2 (en) | 2008-05-09 | 2012-07-31 | Milwaukee Electric Tool Corporation | Keyless blade clamp for a power tool |
EP2266742B1 (en) | 2009-06-23 | 2015-04-29 | Milwaukee Electric Tool Corporation | Hand saw |
US10189099B2 (en) | 2010-04-22 | 2019-01-29 | Milwaukee Electric Tool Corporation | Saw Blade |
US8689667B2 (en) | 2010-04-22 | 2014-04-08 | Milwaukee Electric Tool Corporation | Saw blade |
DE102011080445B4 (en) * | 2011-08-04 | 2015-12-31 | Metabowerke Gmbh | Hand-operated saw and blade tensioning mechanism for this |
US9156097B2 (en) * | 2012-03-20 | 2015-10-13 | Milwaukee Electric Tool Corporation | Reciprocating saw blade clamp |
JP5921385B2 (en) * | 2012-08-22 | 2016-05-24 | 株式会社マキタ | Reciprocating saw |
DE102015218339A1 (en) * | 2015-09-24 | 2017-03-30 | Robert Bosch Gmbh | Hand-held reciprocating saw with a gradient correction device and method for course correction |
US10661365B2 (en) | 2016-10-11 | 2020-05-26 | Stanley Black & Decker, Inc. | Folding multi saw |
US11413693B2 (en) | 2017-05-16 | 2022-08-16 | Milwaukee Electric Tool Corporation | Saw blade |
USD835954S1 (en) * | 2017-05-16 | 2018-12-18 | Milwaukee Electric Tool Corporation | Saw blade |
AU201810316S (en) * | 2017-10-09 | 2018-02-20 | Deville S A A French Joint Stock Company | Adaptor for saw |
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USD887806S1 (en) | 2018-04-03 | 2020-06-23 | Milwaukee Electric Tool Corporation | Jigsaw |
WO2019194987A1 (en) | 2018-04-03 | 2019-10-10 | Milwaukee Electric Tool Corporation | Jigsaw |
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US9871093B2 (en) | 2016-02-17 | 2018-01-16 | Samsung Electonics Co., Ltd. | Semiconductor devices |
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1994
- 1994-07-22 US US08/279,052 patent/US5443276A/en not_active Expired - Lifetime
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1995
- 1995-07-21 EP EP95202024A patent/EP0693341B1/en not_active Expired - Lifetime
- 1995-07-21 DE DE69513741T patent/DE69513741T2/en not_active Expired - Fee Related
Patent Citations (9)
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DE632195C (en) * | 1935-01-01 | 1936-07-03 | Stechschneider G M B H | Saw blade clamp for ironing and decoupling saws or the like. |
US4106181A (en) | 1976-08-09 | 1978-08-15 | American Safety Equipment Corporation | Quick release mechanism for oscillating saw blade |
DE3030855A1 (en) * | 1980-02-25 | 1981-09-10 | Widder Corp., Naugatuck, Conn. | SAW AND SAW BLADE FOR THIS SAW |
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EP0582326A1 (en) * | 1992-07-29 | 1994-02-09 | Skil Europe B.V. | Saw-blade fixation device |
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US9871093B2 (en) | 2016-02-17 | 2018-01-16 | Samsung Electonics Co., Ltd. | Semiconductor devices |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19737240A1 (en) * | 1997-08-27 | 1999-03-11 | Scintilla Ag | Tensioning device for saw blades, especially powered keyhole saws |
DE19737240B4 (en) * | 1997-08-27 | 2005-08-11 | Scintilla Ag | Clamping device for saw blades |
DE19737237B4 (en) * | 1997-08-27 | 2005-09-08 | Scintilla Ag | Clamping device for saw blades |
EP0976485A1 (en) | 1998-07-02 | 2000-02-02 | Black & Decker Inc. | Saw blade clamp with cam for a compass saw |
US6662698B2 (en) | 2002-01-02 | 2003-12-16 | Black & Decker Inc. | Saw blade clamp system |
EP3984676A1 (en) * | 2020-10-16 | 2022-04-20 | Globe (Jiangsu) Co., Ltd. | Reciprocating saw |
US11577423B2 (en) | 2020-10-16 | 2023-02-14 | Globe (jiangsu) Co., Ltd. | Reciprocating saw |
Also Published As
Publication number | Publication date |
---|---|
DE69513741D1 (en) | 2000-01-13 |
DE69513741T2 (en) | 2000-06-29 |
US5443276A (en) | 1995-08-22 |
EP0693341B1 (en) | 1999-12-08 |
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